The precipitous cliffs at the western end of the Gower Peninsula near the village of Rhossili. What is known locally as ‘the Worm’ is from the Old English ‘wurm’ meaning dragon, and is a mile-long promontory jutting out into the Bristol Channel. It may well have been mistaken for a dragon or sea-serpent by Vikings and other ancient seafarers rounding this coast in the mist.